/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.6;
  color: #222;
  background: #fff;
  font-size: 1rem;
}
img { max-width: 100%; height: auto; display: block; }
a { color: #0066cc; text-decoration: none; }
a:hover { text-decoration: underline; }
ul { padding-left: 1.5rem; }

/* ===== UTILITIES ===== */
.container { width: min(92%, 1100px); margin: 0 auto; padding: 1.5rem 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ===== HEADER ===== */
.site-header { background: #f8f9fa; border-bottom: 1px solid #eee; padding: 2rem 0; }
.site-header h1 { font-size: clamp(1.5rem, 4vw, 2rem); margin-bottom: 1rem; line-height: 1.3; }
.intro-snippet { font-size: 1.1rem; color: #444; max-width: 70ch; }

/* ===== AMAZON DISCLOSURE ===== */
.amazon-disclosure {
  background: #fff8e6;
  border-left: 4px solid #FF9900;
  padding: 1rem;
  margin: 1.5rem 0;
  font-size: 0.95rem;
  border-radius: 0 4px 4px 0;
}

/* ===== SECTIONS ===== */
section { margin: 2.5rem 0; }
h2 { font-size: clamp(1.3rem, 3vw, 1.6rem); margin: 0 0 1rem; color: #1a1a1a; border-bottom: 2px solid #f0f0f0; padding-bottom: 0.5rem; }
h3 { font-size: 1.2rem; margin: 1.5rem 0 0.75rem; }

/* ===== PRODUCT CARD ===== */
.products-grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.product-card {
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 1.25rem;
  background: #fff;
  transition: box-shadow 0.2s ease;
}
.product-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.08); }
.product-card h3 { margin-top: 0; }
.product-meta { font-size: 0.9rem; color: #555; margin: 0.5rem 0; }
.product-price { font-weight: 700; font-size: 1.25rem; color: #B12704; margin: 0.75rem 0; }
.product-cta {
  display: inline-block;
  background: #FF9900;
  color: #111;
  padding: 0.6rem 1.2rem;
  border-radius: 4px;
  font-weight: 600;
  margin-top: 0.5rem;
  text-decoration: none;
}
.product-cta:hover { background: #e68a00; text-decoration: none; }
.stock-badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-left: 0.5rem;
}
.stock-badge.in-stock { background: #e6f4ea; color: #1e7e34; }
.stock-badge.low-stock { background: #fff3cd; color: #856404; }
.stock-badge.out-of-stock { background: #f8d7da; color: #721c24; }

/* ===== TABLE ===== */
.table-wrapper { overflow-x: auto; margin: 1.5rem 0; }
.comparison-table { width: 100%; border-collapse: collapse; min-width: 600px; }
.comparison-table th, .comparison-table td {
  padding: 0.75rem;
  border: 1px solid #ddd;
  text-align: left;
  font-size: 0.95rem;
}
.comparison-table th { background: #f5f5f5; font-weight: 600; }
.comparison-table tbody tr:hover { background: #fafafa; }

/* ===== FAQ ===== */
.faq details {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  margin: 0.75rem 0;
  padding: 0.75rem 1rem;
  background: #fafafa;
}
.faq summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 1.5rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  font-weight: bold;
}
.faq details[open] summary::after { content: "−"; }
.faq p { margin-top: 0.75rem; color: #444; }

/* ===== CONCLUSION & FOOTER ===== */
.conclusion { background: #f8f9fa; padding: 1.5rem; border-radius: 8px; margin: 2rem 0; }
.site-footer { background: #222; color: #ccc; padding: 2rem 0; margin-top: 3rem; font-size: 0.9rem; }
.site-footer a { color: #fff; }
.site-footer nav { margin-top: 1rem; }
.site-footer nav a { margin: 0 0.5rem; }

/* ===== UTILITIES JS ===== */
.loading { text-align: center; color: #666; padding: 2rem; }
.price-notice { font-size: 0.9rem; color: #666; font-style: italic; margin-top: 1rem; }
#verification-badge { color: #1e7e34; font-weight: 600; }

/* ===== MOBILE OPTIMIZATIONS ===== */
@media (max-width: 600px) {
  .container { padding: 1rem 0; }
  .product-card { padding: 1rem; }
  .comparison-table th, .comparison-table td { padding: 0.5rem; font-size: 0.9rem; }
  .amazon-disclosure { font-size: 0.9rem; }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
:focus-visible { outline: 2px solid #0066cc; outline-offset: 2px; }

/* ===== BACKLINK SEO FOOTER ===== */
.footer-credit {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #444;
  text-align: center;
}
.footer-credit small {
  color: #aaa;
  font-size: 0.85rem;
}
.backlink-stackcodelab {
  color: #ccc;
  text-decoration: none;
  border-bottom: 1px dotted #888;
  transition: all 0.2s ease;
  font-weight: 500; /* Ligero énfasis para CTR */
}
.backlink-stackcodelab:hover {
  color: #fff;
  border-bottom-color: #fff;
  text-decoration: none;
  background: rgba(255,255,255,0.05); /* Efecto hover sutil */
  padding: 2px 4px;
  border-radius: 3px;
}

/* ===== PÁGINAS LEGALES (privacidad, cookies, aviso-legal) ===== */
.legal-page {
  max-width: 800px;
  margin: 2rem auto;
  line-height: 1.7;
}
.legal-page h1 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin-bottom: 0.5rem;
  color: #1a1a1a;
}
.legal-page h2 {
  font-size: 1.3rem;
  margin: 2rem 0 1rem;
  color: #222;
  border-bottom: 2px solid #f0f0f0;
  padding-bottom: 0.5rem;
}
.legal-page h3 {
  font-size: 1.1rem;
  margin: 1.5rem 0 0.75rem;
  color: #333;
}
.legal-page p, .legal-page li {
  color: #444;
  margin-bottom: 0.75rem;
}
.legal-page ul {
  padding-left: 1.5rem;
  margin: 1rem 0;
}
.legal-page code {
  background: #f5f5f5;
  padding: 2px 6px;
  border-radius: 3px;
  font-family: monospace;
  font-size: 0.9em;
}
.legal-page a {
  color: #0066cc;
  text-decoration: none;
}
.legal-page a:hover {
  text-decoration: underline;
}
.legal-page table {
  font-size: 0.9rem;
}
.legal-footer {
  text-align: center;
}

/* Responsive para móviles */
@media (max-width: 600px) {
  .legal-page {
    margin: 1rem auto;
    padding: 0 1rem;
  }
  .cookies-table th, .cookies-table td {
    padding: 0.5rem;
    font-size: 0.85rem;
  }
}